DATA ACCESS AND SIMULATION DEVICE

PURPOSE: A data access and simulation device is provided to simulate the information by connecting to the bus of the system computer. CONSTITUTION: I/O data of a concept of a map which is accomplished in a software loaded in a system computer are stored by using a corresponding memory element, or read from the corresponding memory element. The present I/O situation of the memory element is transmitted to the monitor of the computer, so we can confirm the situation. The memory element uses a dual port memory and a FIFO memory, and stores or reads the I/O data from an interface controlling device for the system computer to the memory element. The interface controlling device confirms the I/O data stored in the memory element from the computer monitor or prepares new data.